What do historians call a source of historical information created from the interpretation of other sources of historical evidence?

Two books are used to model tectonic plates

Ineed asap ! name the differences between communism and fascism. 1who controls the government and how do they stay in power? 2how are the people’s personal lives and decisions affects? 3what is the government’s view on the economy and how it should be handled? 4what is the government’s view on other countries and their relationship with them?

What was a major failing of the united states government under the articles of confederation?